Alarms
When the unit is not operating properly, the microprocessor records the alarm code, alerts the operator by displaying the ALARM symbol and, depending on the type of alarm, shuts the unit down.
There are two alarm categories:
Manual start
The alarm stops the unit, the dot and the ALARM symbols appears on screen.
Once the alarm condition has been rectified, the ON/OFF key must be pressed to start up again.
Press and release the SET key twice to display the current alarm code on screen. If there is more than one active alarm, all the alarm codes on the unit can be viewed in sequence by pressing and releasing the SET and ARROW keys.
Auto start
The alarm stops the unit, the ALARM symbol appears on screen and the unit starts up automatically once the alarm condition has been rectified.
Should a P1E alarm occur- return air temperature read error alarm code - appear, --- will appear on screen together with the alarm symbol, instead of the return air temperature reading.
Press and release the SET key twice to display the current alarm code on screen. If there is more than one active alarm, all the alarm codes on the unit can be viewed in sequence by pressing and releasing the SET and ARROW keys.